baber/WOPTO huggingface dataset:
Patent GB-574757-A (GB)
Title: Improved device to facilitate carrying an infant
IPC: A47D13/02
Filed: 1944-02-15
Abstract: 574,757. Body harness for carrying infants. FARRELL, M. J. Feb. 15, 1944, No. 2819. Convention date, March 2, 1943. [Class 141] A carrying device for infants comprises a body member for encasing the infant after the manner of diaper, a main sling 13 which is secured to the body member and is worn over the carrier's shoulder, and a subsidiary sling 17 secured by its ends 18 to the main sling and freely movable over the surface of the body member so as to support the infant's back when recumbent, or its thighs when sitting. The body member comprises a front section 6 adapted to be secured by fastenings 9 to a back section 5, the latter having wings 7 with a fastening device 11. The body member has reinforcing webs 19 secured to it at spaced points to form separate loops in which the sling 17 may slide and through which the wings 7 may pass. The body member may be permanently closed, and its back section may have a stiffened extension to support the infant's head.
Patent GB-211462-A (GB)
Title: Improvements in electric furnace for welding, tempering, burning or for heating for other purposes
IPC: F27D11/02
Filed: 1924-02-04
Abstract: 211,462. Cornelius, C. E. Feb. 15, 1923, [Convention date]. Heat - storing apparatus is provided with a resistance or resistances B of carbon and fire-clay, graphite, amorphous carbon, carborunum or the like, each enclosed in a metallic casing or casings C which serve as heat accumulators a n d deliver the heat to the material to be heated, the radiating surface of the resistances being as large as or larger than the heat-delivering surface of the accumulators. The mass of the casing C is such that it can accumulateenough heat to operate the furnace for at least one hour. This may be achieved by having a casing which weighs 5 kilograms for every kilowatt supplied. The casing may be of iron with low carbon content or an alloy of iron, chromium. wolfram, molybdenum and other metals with a high melting point. An addition of siliceous iron to the material of the casing prevents oxidation thereof.
Patent GB-1294401-A (GB)
Title: Self righting vessel
IPC: B63B22/18
Filed: 1970-01-21
Abstract: 1294401 Self-righting vessel RCA CORPORATION 21 Jan 1970 [28 Jan 1969] 2880/70 Headings B7A B7M and B7V A self-righting vessel has a counterweight 23 fixed to the bottom 18 of its hull 10 and has flotation members 32 fixed in a raised position above the deck 14 such that at a predetermined angle of tilt of the vessel in calm water a member 32 engages the water surface at a predetermined distance from the hull. The buoyancy of the hull and flotation members and their weights and that of the counterweight are proportioned with regard to these distances so as to create a resultant self-righting moment on the hull in all positions of tilt of the vessel. In the embodiment shown the flotation members are rigid elongated curved members of streamlined cross-section which act as sails and the counterweight is fixed at the end of a combined fin and rudder member 16.
Patent GB-210287-A (GB)
Title: Improvements in aerials for wireless signalling
IPC: H01Q7/02
Filed: 1923-01-31
Abstract: 210,287. Continental Automatic Telephone & Electric Co., Ltd., (Telephon- Fabrik Akt.-Ges., vorm. J. Berliner). Jan. 31, 1923. No Patent granted (Sealing fee not paid). Aerials.-The coils of a frame aerial are in the form of a flexible woven band A, Fig. 4, the insulated wires B being bound together by weft threads C of cotton impregnated with rubber solution. Tappings are made at the junction of the two ends, as shown, and are taken to a switch E, Fig. 1, so as to vary the number of turns included in the receiving circuit. The arms G of the frame are hinged to a central boss H. By rotating a four-armed retaining-plate I, the arms may be collapsed for transport or stowage. A sliding sleeve M and clamp allows the band-coil to be suitably tensioned. Reference has been directed by the Comptroller to Specification 209,758.
Patent GB-231280-A (GB)
Title: Improvements in electric couplings, terminals and the like
IPC: H01R13/33
Filed: 1924-02-05
Abstract: 231,280. Wadsworth, L. H. Feb. 5, 1924. Drawings to Specification. Vacuum tubes. - A thermionic valve-socket consists of a helical spring having two parts of different diameter; one part is mounted in ebonite and engages with a lead, and the other part, which is of larger diameter, extends above the mounting and receives a valve leg.
Patent GB-250356-A (GB)
Title: Improvements in or relating to mattresses and the like
IPC: A47C23/32
Filed: 1925-02-03
Abstract: 250,356. Vaughan, E., and Pratt, E. F. Feb. 3, 1925. Wire fabrics.-In a woven wire mattress or like surface wherein transverse reinforcing wires are employed, the ends d of these wires c are bent into alignment with the edges of the mattress for attachment therein or thereto.
Patent GB-928182-A (GB)
Title: Continuous esterification process
Inventor: GEDDES KENNETH WILFRED
IPC: C07C67/00
Filed: 1959-01-28
Abstract: An ester is prepared by a continuous process from an acid reactant which is less volatile than water and is a carboxylic acid, carboxylic acid anhydride or carboxylic ester-acid, and an alcohol which is more volatile than water and the ester produced and does not form an azeotrope with water, which comprises heating the acid reactant with an excess of the alcohol in a reactor to which the reactants are fed in counter current flow to produce an ester, withdrawing from the reactor a resulting mixture of the vapours of the alcohol and water, introducing the said mixture of vapours into a distillation column into which is also introduced as liquid reflux a feed of dry alcohol, passing as alcoholic reactant dry alcohol vapour from the head of the distillation column into the reactor, withdrawing water from the base of the distillation column, withdrawing from the reactor a liquid mixture of ester and alcohol, separating the ester from the alcohol and passing the separated alcohol to the distillation column.  The reactor may be operated at 100 DEG -250 DEG C. and preferably comprises a series of zones, each zone having independent heating means whereby each zone may be operated at an optimum temperature. Suitably, the reactor may take the form of a bubble-cap fractionating column with steam heating coils in each section. The dry alcohol vapour from the distillation column head may be passed to the reactor via a compressor.  Part of the vapour may be returned to the distillation column as reflux additional to that furnished by the dry alcohol feed.  The separation of ester from alcohol may be effected by fractional distillation with or without the aid of steam.  When an esterification catalyst, e.g. sulphuric acid or para-toluene sulphuric acid has been used, this is preferably removed before separation of the alcohol from the ester. Suitable apparatus is described in which methyl alcohol and molten phthalic acid or acid anhydride are continuously reacted in the presence of sulphuric acid to give dimethyl phthalate.  Sebacic, maleic, stearic, adipic, isophthalic, terephthalic and isosebacic acids and maleic anhydride are other specified acid reactants. According to the Provisional Specification, the acid reactant may be in the form of an ester with an alcohol more volatile than the alcohol reactant.
Patent GB-302078-A (GB)
Title: Floor cramp
IPC: E04F21/22
Filed: 1928-01-31
Abstract: 302,078. Higginson, L., and Higginson, R. Jan. 31, 1928. Cramps.-A floor cramp comprises two H.section malleable iron or cast steel pivoted handles 1, 2 provided beyond the pivot with joint gripping plates on screw studs 4 adjustable by means of nuts 5 and lock nuts 6. One handle has a pivot 3 for the stay which holds the cramp when pressure is applied to the floor boards, and the handles are locked in closed position by the apertured plate 7 and stud 8.
Patent GB-891341-A (GB)
Title: Improvements in or relating to vacuumised cans
Inventor: TEBBUTT CHARLES NORMAN
IPC: B65B7/28
Filed: 1959-01-28
Abstract: 891,341. Container closures; applying closures. METAL BOX CO. Ltd. Nov. 17, 1959 [Jan. 28, 1959], No. 3131/59. Classes 125(2) and 125(3). A vacuum cap for a can 3 is formed of non- resilient flexible sheet metal, e.g. aluminium, between 0À006 and 0À014 inches thick, and has a crown 1 from which extends the shorter limb 2 of a J-section annular channel within which is a sealing medium 11, the longer limb 5 of the channel forming a skirt with an uninterrupted portion engaging under a curl 7 on the upper end of the can, the edge of the skirt having an extension curl with openings therein spaced round its periphery. The sealing medium 11 is preferably a sealing compound, but may be in the form of a rubber ring. The divergent angle of the limb 5 enables the caps to be nested for storage purposes. The shorter limb 2 may be at right angles to the crown 1. Closing. Apparatus for closing the can comprises a sealing head having a ring 13 secured to a body 15 connected through screw-threads 16 to a machine so that it may be reciprocated relative to the can 3. A member 17 urged downwards by a spring 18 is movable relative to the ring 13. A steam jacket 22 having an inlet 23 is attached to the body 15. In operation, the sealing compound 11 is softened by contact with the can rim, when the can contents are hot. The head is moved down to pick up the can lid, Fig. 9 (not shown), and again lifted together with the lid, Fig. 10 (not shown). Steam is then injected into the head space of the can just prior to the descent of the head to close the can. A shoulder 20 on the member 17 abuts the base of the J-section channel, while the axial movement of the ring continues, the vertical face 24 of the ring pressing the curl 8 inwards to the position shown in Fig. 15. As the steam in the head space of the can cools it forms a vacuum.
Patent GB-620939-A (GB)
Title: Improvements in lamp shade fittings
IPC: F21V17/06
Filed: 1947-02-03
Abstract: 620,939. Lampshades. JOLESCH, A Feb. 3, 1947, No. 3183. [Class 75(ii)] In a lampshade fitting of the kind described in Specification 586,946, in which the shade is supported on a ball fitting so that it can be turned to various angles and be held in its adjusted position by friction, the ball 5 on the shade supporting frame 1 is retained in movable frictional engagement in a hollow cylindrical casing 6 provided on the shade supporting fitment 7 by the open end of the casing 6 being spun or otherwise deformed around part of the ball. A rubber washer or spring 8 is provided in the casing 6 for producing the necessary frictional resistance.
Patent GB-451229-A (GB)
Title: Improvements in magnesium base alloys and the production thereof
IPC: C22C23/00
Filed: 1935-01-31
Abstract: Magnesium base alloys containing 88,5-91,5 per cent of magnesium, 4,5-5,5 of tin, 3,5-4,5 of zinc and 0,5-1,5 of cadmium are heated to 425-435 DEG  C. for 14-20 hours, cooled and then heated to 150-160 DEG  C. for 14-20 hours. In an example an alloy containing 5 per cent of tin, 4 of zinc, 1 of cadmium and the rest magnesium was heated at 435 DEG  C. for 16 hours cooled and heated at 150 DEG  C. for 16 hours.
Patent GB-720666-A (GB)
Title: Improvements relating to corner fired furnaces
IPC: F23K3/00
Filed: 1953-02-05
Abstract: 720,666. Pulverulent-fuel furnaces. BABCOCK & WILCOX, Ltd. Feb. 5, 1953, [Feb. 5, 1952.] No. 3246/53. Drawings to Specification. Class 51 (1). In a pulverulent-fuel corner-fired furnace wherein the flow of air to secondary-air nozzles associated with a burner or group of burners is controlled in relation to the supply of fuel to the burner or burners, the velocity with which secondary air is discharged into the furnace chamber is automatically maintained within suitable limits, irrespective of the amount of air discharged, through regulation of the effective cross-section of the secondary-air nozzles.
Patent GB-752228-A (GB)
Title: Gate valve
Inventor: BREDTSCHNEIDER KURT BRUNO
IPC: F16K3/18
Filed: 1954-02-03
Abstract: 752,228. Sluice valves. CRANE CO. Feb. 3, 1954, No. 3262/54. Class 135. A gate valve consists of a pair of closure plates 22, 23 movable by a screwed, rising stem 13, and an intermediate member 50 with a wedge surface or surfaces for urging the plates outwardly at least in one terminal position of the closure plates. As shown, the intermediate member 50 has an upper wedge surface 51 of annular form coacting with a similar surface 28 on the plate 23, and a lower, annular wedge surface 52 coacting with a surface 29 on the closure plate 23, the surfaces 52, 29 surrounding ports in the parts 50, 23 for registering with the openings in the seatings 7, 8. The closure plate 22 does not extend the whole depth of the intermediate member, being accommodated in a recessed upper part 64 thereof and terminating at its lower end either in a straight, horizontal edge 42 which, in the open condition of the valve, is above the seating 7, or in a concave edge which registers with the edge of the port 7 when the valve is open. Leaf springs centarlize the intermediate member 50 in the vertical direction with respect to the closure plate 23 so that the wedge surfaces are inoperative except at the extreme ends of travel of the movable parts, when movement of the intermediate member is arrested by engagement of stops 69, 70 with abutments in the valve casing. The movable parts may be loosely attached to each other by links 78, 79 and by a screw (not shown) passing through the intermediate member and threaded into the plate 22. Wiping plates 19 are pressed by springs 20 against the movable parts 22, 23, 50. In one modification, the upper and lower wedge surfaces are on opposite sides of the intermediate member, and in another an upper wedge surface is formed on both sides of the. intermediate member. In another embodiment, the closure plate 22 extends for the full depth of the intermediate member and is ported. A further modification relates to that kind of valve in which the lower, ported half of the movable closure assembly is omitted. Application of the invention to valves in which the closure surfaces are cylindrical is referred to. Also, instead of actuation by a rising stem, a non-rising stem or a lever may be utilized.
Patent GB-468520-A (GB)
Title: Improvements relating to gas jet cocks
IPC: F16K31/60
Filed: 1936-02-03
Abstract: 468,520. Plug -cocks. UNITED GAS INDUSTRIES, Ltd., and BLANCHFORD, R. F. Feb. 3, 1936, No. 3287. [Class 135] The thumb-piece g of a plug - cock is pivotally attached to the plug by two opposed inwardlydirected pins g<1> on the thumb-piece which are inserted in L-shaped slots f in the peripheral surface of the plug, so that after insertion of the plug in the body c the parts f<1> of the slots are covered confining the pins g<1> to the parts f<2> of the slots.
Patent GB-1144744-A (GB)
Title: A process for the preparation of amino ketones
Inventor: CAVALLA JOHN FREDERICK
Filed: 1967-01-23
Abstract: 1,144,744. Amino ketones. JOHN WYETH & BROTHER Ltd. 18 Jan., 1968 [23 Jan., 1967], No. 3305/67. Heading C2C. Aminoketones of formula and acid addition and quaternary ammonium salts thereof wherein Ar and Ar<SP>1</SP> are phenyl optionally substituted by alkyl, alkoxy, halogen or OH, is tertiary amino which may be cyclic and Y is an alkylcarbonyl radical I are prepared by reaction of an alkyl metal reagent on a compound of Formula IV wherein X is cyano, t-carbamoyl, or alkoxycarbonyl followed by hydrolysis and optional salt formation, the compounds of Formula IV being prepared by action of a secondary amine HNR<SP>1</SP>R<SP>2</SP> on one of the compounds of formulµ wherein R<SP>3</SP> and R<SP>4</SP> are alkyl and reducing the enamine so formed. Certain of the amino ketones are novel namely all those wherein NR<SP>1</SP>R<SP>2</SP> is cyclic and those wherein NR<SP>1</SP>R<SP>2</SP> is acyclic but where Ar<SP>1</SP> is substituted. The acetals and enol ethers of the formulµ immediately above are prepared by action of a corresponding 2,3-diarylpropionitrile with a 2-halopropion-aldehyde dialkyl acetal followed by acid hydrolysis to obtain an enol ether. Pharmaceutical compositions in conventional forms and having cardiovascular, CNS, and/or analgesic activity comprise an amino ketone obtained by the above process and a carrier therefor.
Patent GB-333148-A (GB)
Title: Improvements in and relating to static electric transformers
IPC: H01F38/24
Filed: 1929-01-31
Abstract: 333,148. Ferranti, S. Z. de, Whibley, J. H., and Ferranti, Ltd. Jan. 31, 1929. Transformers.-A transformer adapted for supplying the voltage coils of a number of meters under test comprises a number of secondary windings arranged on a common core having a crosssection sufficiently large to ensure that secondary and primary voltages are nearly in phase and carrying a single primary winding. Provision may be made for maintaining the windings at a constant temperature in order to avoid variations in the voltage and phase relationships between the primary and secondary windings. The secondary windings 20 are in the form of a stranded conductor, each strand 21 being insulated and forming one secondary. Adjustment of transformation ratio and phase displacement is effected by combined adjustment of magnetic leakage (effected by means of a magnetic shunt 23a or an adjustable air-gap in the core) and a variable resistance 22a in the primary circuit. To render the transformer characteristics independent of external temperature changes the crosssections of primary and secondary windings are such as to introduce neglible errors over a range of from 10-30‹ C. Meters under test are arranged as shown in Fig. 4, with their current coils 26 in series, their voltage coils 24 being connected one to each secondary winding. This arrangement enables the usual isolating link between the current and voltage coils to be dispensed with. An arrangement of polyphase meters under test is also described. According to the Provisional Specification, the transformer may be wound with " Eureka" or like wire having a neglible temperature coefficient, and it may be oil-immersed and provided with heatadding or heat-abstracting means.
Patent GB-924824-A (GB)
Title: Improvements in or relating to an adjustable shelving structure
IPC: A47B57/48
Filed: 1962-01-30
Abstract: 924,824. Shelving. H. O. LUNDQVIST. Jan. 30, 1962 [Jan. 30, 1961], No. 3422/62. Classes 52 (1), 52 (3) and 52 (5). A wooden adjustable shelving structure of the type shown in Specification 641,839, comprises a pair of side frames whose comer posts 1, 2, 3, 4 each have a vertical groove 10 and vertically spaced perforations 11, the frames being fixedly joined by members 5, 6 and 7 and by members 20 and a fixed top shelf 8a, also adjustable shelves 8 having at each corner a cut-out with a tongue 8b entering the corresponding groove 10, support pins 12 insertable in selected perforations 11 to underlie and support the shelves, and auxiliary support means insertable in the hole 11 below each pin 12. The auxiliary support means is of rigid wire and has a U-shaped portion in one plane with portions 17, 16, and 15 which embrace the posts 1, 2, 3, 4 as in Fig. 4, the arm 17 and its continuation 13 lying in a plane normal to that above, arm 13 ending in a portion 19 which engages a hole 11. A reinforcing angle may be embedded in the short side edges of the shelves 8.
Patent GB-309261-A (GB)
Title: Improvements in or relating to rotary screens
IPC: B07B1/18
Filed: 1928-02-03
Abstract: 309,261. Sims, A. G., and Cort & Son, Ltd., R. Feb. 3, 1928. Rotary sieves. - Relates to screening-apparatus of the type comprising two cylindrical screens a, b eccentrically arranged and consists in the provision of intergeared driving shafts e, f arranged externally of both screens. In the arrangement shown, the outer screen a is driven by friction rollers c on a shaft e driven from a gear box h<1>. The inner screen is driven by friction rollers d on the shaft f driven from the shaft e by spur gearing h, i. In an alternative construction the friction rollers driving the screens are intergeared by an idler friction roller. The screens may comprise sections t of perforate material or a combination of perforate and imperforate material connected by clamping devices as described in Specification 282,879.
Patent GB-936048-A (GB)
Title: A new or improved spraying device
IPC: B65D83/14
Filed: 1961-01-30
Abstract: 936,048. Dispensing liquids by gaseous pressure. SOC. TECHNIQUE DE PULVERISATION. Jan. 30, 1961 [Feb. 8, 1960; June 14, 1960], No. 3537/61. Class 102(2). Liquid is discharged from a reservoir 2 through a nozzle 9 by the pressure of gas in an auxiliary reservoir 7, the connections between the reservoirs 2, 7 and between the reservoir 2 and nozzle 9 being opened simultaneously and likewise closed, by a spring loaded slide valve 12 operated by a button 13. In a modification the reservoir 7 is mounted on top of the valve housing 1 and the valve is horizontally disposed. In a further modification the reservoir is mounted on the head of the valve 12.
Patent GB-556935-A (GB)
Title: Improvements in or relating to reflex light reflectors, and signs adapted for outdoor highway use and including the improved reflex light reflector
IPC: C03C12/02
Filed: 1942-03-17
Abstract: 556,935. Reflex light reflectors. STEVENS, A. H. (Minnesota Mining & Manufacturing Co.). March 17, 1942, No. 3566. [Class 140] [Also in Groups XI, XVIII and XX] Transparent spheres, for use as reflex lights forming a layer associated with light reflecting means, have a refractive index within the.range of approximately 1.7 to 1.9. The Fig. 1 .shows spheres 12 of glass or a synthetic resin secured to a base 10 by a binding layer 11 which leaves somewhat less than half their surfaces exposed and contains aluminium or other metallic flakes or titanium dioxide or other diffusive reflector. In this form the beads may be silvered, embedded in a suitable binder, and the silver removed from the exposed surfaces. In another form a backing of aluminium, tin or other reflecting metal foil may be used, and the beads may be embedded in a transparent binder and spaced from the metal backing, or may be in tangential contact with it or may be somewhat embedded in it. In this form a backing with a pigmented reflecting coating of the diffuse or semi-specular tint may be used. In another form a flexible paper or backing with a reflector surfacing carries a pigmented binding coating, and a layer of transparent beads is partially embedded in this so as to be in contact with the backing. The material may be made in sheet form and cut to desired shapes. Road signs or road stripes may be prepared in this manner. The spheres are within the dimension range 3-50 mils diameter with 4-10 mils diameter as the optimum dimension. U.S.A. Specification 2,206,081 is referred to.
Patent GB-1388572-A (GB)
Title: Wheels
IPC: B60B9/20
Filed: 1972-01-26
Abstract: 1388572 Spring wheels DIMO HOLDINGS Ltd 15 Jan 1973 [26 Jan 1972] 3574/72 Heading B7C A metal, e.g. aluminium wheel is provided with an annular chamber 7 which permits radial displacement of rim 4 relative to hub 1. The chamber may be closed or may be open to the interior of a tubeless tyre fitted on the rim either via bleed holes or via holes permitting free flow of air. As illustrated a tyre is fitted on the rim by removing part 2b from its wheel, applying the tyre to part 2a and securing the two parts 2a, 2b by bolts 5. The wheel may be formed by die-casting.
Patent GB-394275-A (GB)
Title: Process for the production of reguline ferroboron
IPC: A63B35/10
Filed: 1933-02-06
Abstract: Ferro-boron is made by the thermo-aluminic reaction of a mixture of boracite, iron oxide (preferably magnetite), an aluminium-magnesium alloy, and potassium chlorate, the boracite being preferably present in excess.  Boracite may be replaced by a mixture of its components boron trioxide, magnesium oxide and magnesium chloride, or by mixtures of boric acid with other alkaline earth oxides or chlorides.